Résumé
This book explores the evolution of dental tissues and paleobiology in selachians, focusing on the unique anatomical features of these vertebrates, such as their cartilaginous skeleton and continuously renewing dentition. Due to the difficulty of their fossilization, the fossil record mainly comprises isolated teeth, making the study of their dentition crucial for understanding their evolutionary history. The authors, experts in paleontology and dental histology, review existing theories and present new findings from recent studies to address unresolved questions about the potential and utilization of dental tissue studies in fish. The book aims to enhance understanding of selachians' evolutionary and biological history, as well as the evolution of teeth themselves, providing valuable insights for researchers and students in paleontology and marine biology.